| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtQuick module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
| ** a written agreement between you and The Qt Company. For licensing terms |
| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
| ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-2.0.html and |
| ** https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "qquickdesignersupportmetainfo_p.h" |
| #include "qquickdesignersupportproperties_p.h" |
| |
| #include "qquickdesignercustomobjectdata_p.h" |
| |
| #include <QGlobalStatic> |
| #include <QQmlContext> |
| #include <QQmlEngine> |
| |
| #include <private/qqmlbinding_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| typedef QHash<QObject*, QQuickDesignerCustomObjectData*> CustomObjectDataHash; |
| Q_GLOBAL_STATIC(CustomObjectDataHash, s_designerObjectToDataHash) |
| |
| struct HandleDestroyedFunctor { |
| QQuickDesignerCustomObjectData *data; |
| void operator()() { data->handleDestroyed(); } |
| }; |
| |
| QQuickDesignerCustomObjectData::QQuickDesignerCustomObjectData(QObject *object) |
| : m_object(object) |
| { |
| if (object) { |
| populateResetHashes(); |
| s_designerObjectToDataHash()->insert(object, this); |
| |
| HandleDestroyedFunctor functor; |
| functor.data = this; |
| QObject::connect(object, &QObject::destroyed, functor); |
| } |
| } |
| |
| void QQuickDesignerCustomObjectData::registerData(QObject *object) |
| { |
| new QQuickDesignerCustomObjectData(object); |
| } |
| |
| QQuickDesignerCustomObjectData *QQuickDesignerCustomObjectData::get(QObject *object) |
| { |
| return s_designerObjectToDataHash()->value(object); |
| } |
| |
| QVariant QQuickDesignerCustomObjectData::getResetValue(QObject *object, const QQuickDesignerSupport::PropertyName &propertyName) |
| { |
| QQuickDesignerCustomObjectData* data = get(object); |
| |
| if (data) |
| return data->getResetValue(propertyName); |
| |
| return QVariant(); |
| } |
| |
| void QQuickDesignerCustomObjectData::doResetProperty(QObject *object, QQmlContext *context, const QQuickDesignerSupport::PropertyName &propertyName) |
| { |
| QQuickDesignerCustomObjectData* data = get(object); |
| |
| if (data) |
| data->doResetProperty(context, propertyName); |
| } |
| |
| bool QQuickDesignerCustomObjectData::hasValidResetBinding(QObject *object, const QQuickDesignerSupport::PropertyName &propertyName) |
| { |
| QQuickDesignerCustomObjectData* data = get(object); |
| |
| if (data) |
| return data->hasValidResetBinding(propertyName); |
| |
| return false; |
| } |
| |
| bool QQuickDesignerCustomObjectData::hasBindingForProperty(QObject *object, |
| QQmlContext *context, |
| const QQuickDesignerSupport::PropertyName &propertyName, |
| bool *hasChanged) |
| { |
| QQuickDesignerCustomObjectData* data = get(object); |
| |
| if (data) |
| return data->hasBindingForProperty(context, propertyName, hasChanged); |
| |
| return false; |
| } |
| |
| void QQuickDesignerCustomObjectData::setPropertyBinding(QObject *object, |
| QQmlContext *context, |
| const QQuickDesignerSupport::PropertyName &propertyName, |
| const QString &expression) |
| { |
| QQuickDesignerCustomObjectData* data = get(object); |
| |
| if (data) |
| data->setPropertyBinding(context, propertyName, expression); |
| } |
| |
| void QQuickDesignerCustomObjectData::keepBindingFromGettingDeleted(QObject *object, |
| QQmlContext *context, |
| const QQuickDesignerSupport::PropertyName &propertyName) |
| { |
| QQuickDesignerCustomObjectData* data = get(object); |
| |
| if (data) |
| data->keepBindingFromGettingDeleted(context, propertyName); |
| } |
| |
| void QQuickDesignerCustomObjectData::populateResetHashes() |
| { |
| const QQuickDesignerSupport::PropertyNameList propertyNameList = |
| QQuickDesignerSupportProperties::propertyNameListForWritableProperties(object()); |
| |
| const QMetaObject *mo = object()->metaObject(); |
| QByteArrayList deferredPropertyNames; |
| const int namesIndex = mo->indexOfClassInfo("DeferredPropertyNames"); |
| if (namesIndex != -1) { |
| QMetaClassInfo classInfo = mo->classInfo(namesIndex); |
| deferredPropertyNames = QByteArray(classInfo.value()).split(','); |
| } |
| |
| for (const QQuickDesignerSupport::PropertyName &propertyName : propertyNameList) { |
| |
| if (deferredPropertyNames.contains(propertyName)) |
| continue; |
| |
| QQmlProperty property(object(), QString::fromUtf8(propertyName), QQmlEngine::contextForObject(object())); |
| |
| QQmlAbstractBinding::Ptr binding = QQmlAbstractBinding::Ptr(QQmlPropertyPrivate::binding(property)); |
| |
| if (binding) { |
| m_resetBindingHash.insert(propertyName, binding); |
| } else if (property.isWritable()) { |
| m_resetValueHash.insert(propertyName, property.read()); |
| } |
| } |
| } |
| |
| QObject *QQuickDesignerCustomObjectData::object() const |
| { |
| return m_object; |
| } |
| |
| QVariant QQuickDesignerCustomObjectData::getResetValue(const QQuickDesignerSupport::PropertyName &propertyName) const |
| { |
| return m_resetValueHash.value(propertyName); |
| } |
| |
| void QQuickDesignerCustomObjectData::doResetProperty(QQmlContext *context, const QQuickDesignerSupport::PropertyName &propertyName) |
| { |
| QQmlProperty property(object(), QString::fromUtf8(propertyName), context); |
| |
| if (!property.isValid()) |
| return; |
| |
| QQmlAbstractBinding *binding = QQmlPropertyPrivate::binding(property); |
| if (binding && !(hasValidResetBinding(propertyName) && getResetBinding(propertyName) == binding)) { |
| binding->setEnabled(false, nullptr); |
| } |
| |
| |
| if (hasValidResetBinding(propertyName)) { |
| QQmlAbstractBinding *binding = getResetBinding(propertyName); |
| |
| #if defined(QT_NO_DYNAMIC_CAST) |
| QQmlBinding *qmlBinding = static_cast<QQmlBinding*>(binding); |
| #else |
| QQmlBinding *qmlBinding = dynamic_cast<QQmlBinding*>(binding); |
| #endif |
| if (qmlBinding) |
| qmlBinding->setTarget(property); |
| QQmlPropertyPrivate::setBinding(binding, QQmlPropertyPrivate::None, QQmlPropertyData::DontRemoveBinding); |
| if (qmlBinding) |
| qmlBinding->update(); |
| |
| } else if (property.isResettable()) { |
| property.reset(); |
| } else if (property.propertyTypeCategory() == QQmlProperty::List) { |
| QQmlListReference list = qvariant_cast<QQmlListReference>(property.read()); |
| |
| if (!QQuickDesignerSupportProperties::hasFullImplementedListInterface(list)) { |
| qWarning() << "Property list interface not fully implemented for Class " << property.property().typeName() << " in property " << property.name() << "!"; |
| return; |
| } |
| |
| list.clear(); |
| } else if (property.isWritable()) { |
| if (property.read() == getResetValue(propertyName)) |
| return; |
| |
| property.write(getResetValue(propertyName)); |
| } |
| } |
| |
| bool QQuickDesignerCustomObjectData::hasValidResetBinding(const QQuickDesignerSupport::PropertyName &propertyName) const |
| { |
| return m_resetBindingHash.contains(propertyName) && m_resetBindingHash.value(propertyName).data(); |
| } |
| |
| QQmlAbstractBinding *QQuickDesignerCustomObjectData::getResetBinding(const QQuickDesignerSupport::PropertyName &propertyName) const |
| { |
| return m_resetBindingHash.value(propertyName).data(); |
| } |
| |
| bool QQuickDesignerCustomObjectData::hasBindingForProperty(QQmlContext *context, |
| const QQuickDesignerSupport::PropertyName &propertyName, |
| bool *hasChanged) const |
| { |
| if (QQuickDesignerSupportProperties::isPropertyBlackListed(propertyName)) |
| return false; |
| |
| QQmlProperty property(object(), QString::fromUtf8(propertyName), context); |
| |
| bool hasBinding = QQmlPropertyPrivate::binding(property); |
| |
| if (hasChanged) { |
| *hasChanged = hasBinding != m_hasBindingHash.value(propertyName, false); |
| if (*hasChanged) |
| m_hasBindingHash.insert(propertyName, hasBinding); |
| } |
| |
| return QQmlPropertyPrivate::binding(property); |
| } |
| |
| void QQuickDesignerCustomObjectData::setPropertyBinding(QQmlContext *context, |
| const QQuickDesignerSupport::PropertyName &propertyName, |
| const QString &expression) |
| { |
| QQmlProperty property(object(), QString::fromUtf8(propertyName), context); |
| |
| if (!property.isValid()) |
| return; |
| |
| if (property.isProperty()) { |
| QQmlBinding *binding = QQmlBinding::create(&QQmlPropertyPrivate::get(property)->core, |
| expression, object(), QQmlContextData::get(context)); |
| binding->setTarget(property); |
| binding->setNotifyOnValueChanged(true); |
| |
| QQmlPropertyPrivate::setBinding(binding, QQmlPropertyPrivate::None, QQmlPropertyData::DontRemoveBinding); |
| //Refcounting is taking take care of deletion |
| binding->update(); |
| if (binding->hasError()) { |
| if (property.property().userType() == QVariant::String) |
| property.write(QVariant(QLatin1Char('#') + expression + QLatin1Char('#'))); |
| } |
| |
| } else { |
| qWarning() << Q_FUNC_INFO << ": Cannot set binding for property" << propertyName << ": property is unknown for type"; |
| } |
| } |
| |
| void QQuickDesignerCustomObjectData::keepBindingFromGettingDeleted(QQmlContext *context, |
| const QQuickDesignerSupport::PropertyName &propertyName) |
| { |
| //Refcounting is taking care |
| Q_UNUSED(context) |
| Q_UNUSED(propertyName) |
| } |
| |
| void QQuickDesignerCustomObjectData::handleDestroyed() |
| { |
| s_designerObjectToDataHash()->remove(m_object); |
| delete this; |
| } |
| |
| QT_END_NAMESPACE |
| |